Click the notation in the event XML

For the control Click event, I usually prefer to use the setonclicklistener in the activity, but this code is large, and it does not conform to the logic of code writing, the better way is to use the XML file android:onclick= "" and android:clickable= "true" to implement, for ImageView and TextView, the default android:clickable= "false" (that is, do not respond to clicks), so it needs to be set to "true" line, The button and ImageButton default to "true". In addition, with two answers about the Click event, very up posture, thank you crooked nut basin Friends AH ~ ~ ~
This is related to the theme, set Android:clickable to True response click
How can I give ImageView click Effect like a button in Android?

Click the notation in the event XML